Fix orders of yaml of reference/kube* (#14238)

The orders of kind and metadata were inconsistent, and that made the
doc unreadable.
This fixes the orders in consistent way.

content/en/docs/reference/setup-tools/kubeadm/kubeadm-join.md

@@ -214,6 +214,7 @@ it off regardless. Doing so will disable the ability to use the `--discovery-tok
 ```shell
 kubectl -n kube-public get cm cluster-info -o yaml | grep "kubeconfig:" -A11 | grep "apiVersion" -A10 | sed "s/    //" | tee cluster-info.yaml
 apiVersion: v1
+kind: Config
 clusters:
 - cluster:
     certificate-authority-data: <ca-cert>
@@ -221,7 +222,6 @@ clusters:
   name: ""
 contexts: []
 current-context: ""
-kind: Config
 preferences: {}
 users: []
 ```